On 11/16/2021 9:09 PM, Jairo A. del Rio via ntg-context wrote:
If I understand it correctly, you may need something like this...?
% Protection is key
\protected\def\inner[#1]{\empty}
% \outer is (or was) already defined in \CONTEXT
% Please use another name
\def\Outer{\inner[123] and \inner[some text] etc.}
\startluacode
local implement = interfaces.implement
local argument = tokens.scanners.argument
local function parseinner()
local r = {}
local str = argument()
str = str:gsub("\\inner%s*(%b[])",function(s)r[#r+1] = s:sub(2,#s-1)end)
context(table.concat(r," ")) -- Change " " by another spacer if needed
end
implement{name = "parseinner", public = true, actions = parseinner}
\stopluacode
\starttext
\parseinner{\Outer}
\stoptext
However, this will only work with very simple cases (no nesting, etc.).
Hope this helps.
well, if we start talking weird code ...
\starttext
\tolerant\def\MyInnerOuter#1\MyInner[#2]#3\MyDone\ignorearguments{#2}
\def\MyOuter#1{\MyInnerOuter#1\MyDone\ignorearguments}
whatever: \MyOuter{\MyInner[oeps]}\par
whatever: \MyOuter{\InnerMy[oeps]}\par
\edef\ItWorksA{\MyOuter{\MyInner[oeps]}}
\edef\ItWorksB{\MyOuter{\InnerMy[oeps]}}
whatever: \meaningless\ItWorksA\par
whatever: \meaningless\ItWorksB\par
\stoptext
(1) we're tolerant so no problem when no match
(2) the ignore hack quits scanning because tex will keep looking
it's pretty fast and needs no lua magic, only a twisted mind
Hans
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Hans Hagen | PRAGMA ADE
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